Bung withdrawal machinery



June 11, 1935.

.A. M. MUNZINGER 2,004,211 BUNG WITHDRAWAL MACHINERY Filed Oct. 14, 1953 2 Sheets-Sheet l FTTUFAEYE June 11, 1935. MUNZlNGER 2,004,211

BUNG WITHDRAWAL MACHINERY Filed Oct. 14, 1955 R: awn W HTTU/F/VEYS 2 Sheets-Sheet 2 JA/VEA/TU/Q Patented June 11, 1935 BUNG WI HD AW A MACHINERY Albert M. Mu'n'zinger, Janesville, Wis. Application October 14, 1933, Serial No. 693,549

- 7 1 Claim, (Cl. 217112) My invention relates to a bung Withdrawing machine and has forits object the provision of apparatus whereby the barrel from which the bung is to be withdrawn is readily positioned as to align the bung with that part of the apparatus for withdrawing the said bung, and improved mechanical construction of the bung drawing mechanism proper.

The construction of that part of the bung drawing mechanism which actually contacts the bung is similar to that disclosed in my Patent Number 1,057,492 of April 1, 1913 with one important ex.- ception, namely, I provide means for afiixing the bung drawing tool to a drill press in a manner as to mechanically prevent rotation of the legs (designated by the numeral 3 in my Patent 1,057,492) from rotating when the machine is started.

The construction of the device disclosed in the patent necessitates the operator grasping one of the legs 3 when the machine is started as to prevent the said legs from rotating with the drill and inasmuch as the other hand is grasping the handle for lowering the drill to the bung, it is not possible to hold the barrel as to align the said drillwith the bung to be removed. Furthermore,

a negligent operator may start the drill and then attempt to grasp one of the legs 3 while it is rotating; thus serious injury to the hand may result.

Another object is to provide a cooperating barrel positioning rack to facilitate the handling of barrels from which bungs are to be withdrawn. In breweries where thousands of barrels are returned daily for refilling, it is essential that the bung is removed therefrom with dispatch and the machine described herebelow will actually speed up the process of bung withdrawal 100 percent over that of my original machine described in Patent Number 1,057,492 mentioned above.

For better understanding of the mechanical parts and working of the machine, attention is directed to the drawings in which:

Figure 1 is a side elevation; and

Fig. 2 is a front elevation, partially in plan and partially fragmentary.

In the drawings the numeral IE) will be usedto designate generally a drill press of ordinary construction driven through the medium of belt ll attached to power shaft not shown. Said belt i l transmits power to a shaft i2 through the medium of a drive pulley I3; the said shaft I2 in turn transmits power to a rotating spindle [4 through the medium of driven gears 15 and [6.

A lever H is used to lower and elevate the spindle M as to cause the tool fixed to the end of the spindle to contact and withdraw irom the work. 1 .7 The numeral I8 is used to generally describe the bung withdrawal tool which is fixed to the spindle Hithrough the medium of a pin l9 passing through aligned slots in the lower end of the spindle i4 and the upper shaft portion of the drill.

, Rotatably mounted on the shaft 1 9 is a support 28 having legs 2! and an extension 22 drilled at its outermost end to receive a shaft 23 reeiprocably mounted in a drilled and bushed extension of the drill press it This connection, while it permits raising and lowering of the tool 18 from and to the work, will prevent rotation of the legs 2| when the drill 24 is revolving. This permits the operatcr to utilize one hand in centering the bung in the barrel from which the. said bung is to be removed, and withthe'other hand operate the.

elevating and lowering lever ll. Furthermore, the construction described for preventing the rotating of the legs will permit the said legs to contact the barrel at the proper place and at the proper time.

It is to be noted that the legs also act as a stop which will prevent the tool from being projected into the barrel too far as it is essential that further progress of the drill be stopped after it has passed through the bung a given distance.

A barrel rack 25 forms a part of my machine; the said rack is formed of angle iron having legs 26 which elevate the rack from the floor and the ends are angled downwardly as to facilitate the rolling of barrels from the flocr onto the rack.

Stop and aligning members 21 are positioned midway of the two pair of legs directly below the tool l8. Said aligning members consist of cast metallic segments, thetop edge portions of which are formed in a convex curve as to receive the rounded side of a barrel. Mounted in the ends of the curved portion of the said segments are rotatable balls 28 which permit of easy rotation of a barrel which has been rolled onto the said segments.

That is to say, the balls or spheres 28 are universally mounted in the associated sockets so that the same may turn in any direction to permit of the convenient longitudinal tilting of the barrel or the rotation of the barrel to align the bung of the barrel with the downwardly directed bit. The members 21 are shown to projects somewhat above the surfaces of the tracks 25 so that the arcuatelyrecessed top surfaces thereof will be eavailable for the reception of the surface portion of the barrel which, as previously stated, rests upon the freely movable spheres 28 sothat the expeditious longitudinal tilting and rotation of the barrel is made possible for the accurate alignment of the bung of the barrel with the associated drill.

It is readily seentth at by rotation and/or tipping of the barrel away from or towards the operator alignment of the bung and tool is quickly and easily had. H I i The device functions as follows: i

A loading operator rollsbarrels from which the bung is to be removed onto the rack; the drilling operator rolls the barrel adjacentthe toolcnto the supporting segments 28 and, with his left hand, rotates and/or tips it as to align the hung with the tool and, which his right hand, actuates the lever IT as to cause the'tcol to be lowered to the bung. Immediately the bung is drilled and the core is withdrawn from the barrel, he rolls said barrel to barrel.

the left and positions the ne'irt It is readily seen'th'at the constructions shown and described herein will greatly facilitate the handling of empty barrels from which bungs are to be withdrawn.

Having described my invention, what I claim and desire to secure by Letters Patent is:

In a machine for removing bungs from barrels, a drill having a downwardly directed bit for engagement with the bung of a barrel, a track below the bit and a pair of bung aligning members projecting to levels above the tracks and having arcuately recessed upper surfaces for the reception of the rounded surface portions of barrels,

said arcuately recessed upper surfaces of the members having sockets therein; and spherical elements mounted in said sockets for universal movement and projecting above the immediately surrounding surfaces of the said members to form rests supporting the barrel for free longitudinal tilting and rotation to align the bung of the 20 barrel with said bit. 7

' ALBERT M. MUNZINGER. 

